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MINISTRY OF NATURAL RESOURCES & ENVIRONMENT REMOTE SENSING CENTRE. Application of LiDAR technology in Vietnam. Dr. Hoang Ngoc Lam MSc. Nguyen Thuc Anh Hanoi, 22 May 2007. Content. Technical details of LiDAR projects Project workflow & examples from current project

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application of lidar technology in vietnam

MINISTRY OF NATURAL RESOURCES & ENVIRONMENT

REMOTE SENSING CENTRE

Application of LiDAR technology in Vietnam

Dr. Hoang Ngoc Lam

MSc. Nguyen Thuc Anh

Hanoi, 22 May 2007

content
Content
  • Technical details of LiDAR projects
  • Project workflow & examples from current project
  • Applications of LiDAR data
  • Q & A
projects technical details
Cantho: 1.800 km2

July 2006

Contractor: AAMHatch

LiDAR system: ALTM 3100 C

Airplane: ANTONOV 2

Flying speed: 180 km/h

Flying altitude: 1500m

Strip side-overlap: 25%

GPS frequency: 1 Hz

INS frequency: 200 Hz

Scan frequency: 70 Hz

Laser repetition rate: 70kHz

Output:

Laser points: Clasified

Intensity image

Quality control:

390 checking points by GPS RTK along roads

RMSE: 0.14m

Vinhlong - Bentre: 2.200 km2

May 2007

Contractor: GeoKosmos

LiDAR system: ALTM 3100 C

Airplane: ANTONOV 2

Flying speed: 180 km/h

Flying altitude: 1500m

Strip side-overlap: 30%

GPS frequency: 1 Hz

INS frequency: 200 Hz

Scan frequency: 70 Hz

Laser repetition rate: 70kHz

Scale angle: 25

Point density: ~ 1m

Digital camera: Rollei AIC modular LS 22Mp

Focal length: 50 mm

Scale 1:30.000

Ground resolution: 27 cm

Output:

Laser points: Classified

Intensity image

Simultaneously taken color air-photo

Projects technical details
applications
Applications
  • High resolution DEM generation:

Integrated GIS for Mekong delta regional development

applications16
Applications
  • 3D city model and urban management applications
  • DSM generation & Wireless communication management
other applications
Other applications
  • Civil engineering & Infrastructure development
  • Corridor mapping
  • Spatial planning
  • Forestry applications
  • Flood monitoring
  • Landslide monitoring
  • Erosion monitoring
  • Coastline monitoring
  • Irrigation management
  • Coastline analysis and protection
  • Volumetric studies
  • Geomorphology & archeology